It is in Marathi as "Shri Geeta Yog Shodh Brahmavidyecha Parts 1,2 and 3". It is an ongoing series of 18 books on the Shrimad Bhagawad Geeta, one book for each chapter. Dr. Shri Balaji Tambe brings to bear his unique and insightful perspective on the Geeta in this detailed, beginner level commentary.